baber/WOPTO huggingface dataset:
Patent GB-964946-A (GB)
Title: Sealing and braking device for rotary machines
IPC: F16J15/36
Filed: 1962-11-19
Abstract: 964,946. Axial-flow blowers; turbines. BROWN, BOVERI & CO. Ltd. Nov. 10, 1962 [Nov. 21, 1961], No. 43624/62. Headings F1C and F1T. [Also in Division F2] Means for sealing and braking the shaft 6 of a fluid pressure rotary machine, for example a blower, compressor or turbine, comprises a piston 1 which is slidable on a cylindrical extension 5 of the machine casing 3, connected to the casing by a metal bellows 2 and spaced from the machine rotor 11 when the machine is running, the piston being actuated to bring it into contract with the rotor 11 when the machine is brought to rest by supplying auxiliary fluid at a higher pressure than that in the machine to the space 8 inside the bellows 2, the consequent pressure of the piston on the rotor causing axial displacement of theshaft resulting in closure of an annular clearance 7 between the shaft and the extension 5 and the supply of auxiliary fluid to said clearance. Movement of the piston toward the rotor uncovers an orifice 10 in the extension 5 through which auxiliary fluid is supplied to the clearance 7 and consequent displacement of the shaft closes the clearance 7 by engagement of a flange 12 on the shaft with the casing 3. When the machine is running the shaft is sealed by normal sealing means (not shown). The invention is applicable to machines linked to a common fluid circuit and when in use on one of such machines it holds the shaft at rest and the auxiliary fluid in the clearance 7 prevents leakage of common fluid along the shaft.
Patent GB-928907-A (GB)
Title: Improvements in and relating to the production of hydrogen cyanide
IPC: C01C3/02
Filed: 1961-12-06
Abstract: Hydrogen cyanide is produced by maintaining a bed of electrically conductive carbon particles in a fluidized state in a reaction furnace by passing upwards through the bed a gas comprising a mixture of ammonia, a hydrocarbon gas and hydrogen at a volume ratio to NH3 of at least 0,25:1, and passing an electric current between electrodes through the bed with sufficient power to maintain the bed at 1300 DEG -1600 DEG C. sufficient to maintain reaction to form hydrogen cyanide.  The hydrocarbon may be methane, ethane, propane, a butane, a pentane and/or a hexane.  The hydrogen may be separated from the reaction products and recycled.  Specification 854,268 is referred to.
Patent GB-1060492-A (GB)
Title: A weed killer
Inventor: RICHTER HEINZ KURTH GERD
IPC: A01N39/04
Filed: 1963-11-07
Abstract: 1,060,492. Herbicides. LEUNA - WERKE "WALTER ULBRICHT", VEB. Nov. 7, 1963, No. 43982/63. Heading ASE. Weed killers are produced by mixing an ester produced by esterifying a chloro-substituted phenoxy-acetic acid, e.g. MCPA, 2,4-D or 2,4,5-T with an ethylene oxide chlorophenol condensate, e.g. an oxyethylated 2,4-dichloro phenol, chloro-o-cresol or 2,4,5-trichlorophenol with an oxyethylated chloro phenol as emulsifier e.g. an oxyethylated chloro-o-cresol in a ration of from 1:1 to 1:100 parts by weight.
Patent GB-1027195-A (GB)
Title: Improvements in heat exchangers
Inventor: ERNEST WALTER
IPC: F28D7/00
Filed: 1963-11-07
Abstract: 1,027,195. Heat exchangers. METALLURGICAL ENGINEERS Ltd. Nov. 5, 1964 [Nov. 7, 1963], No. 44054/63. Heading F4S. A heat exchanger has a primary circuit and two secondary circuits of different lengths which have a common outlet. As shown, a primary fluid enters by a connection 14, an outer tube or shell 3 lined with refractory material 4, and leaves by a connection 15. Secondary fluid entering a pipe 16 passes into tubes 18, 19 in a ratio determined by a valve 17. Fluid from the pipe 18 passes through a tube 1, header 10, heat exchange tube coil 8, header 11, tube coil 9 and header 12 to a common outlet 13 for the secondary fluid. Fluid from the tube 19 passes through an annular space 6 to the header 11 and thence through the heat exchange tube coil 9 to the outlet 13, hence by-passing the tube coil 8. The temperature of the fluid leaving the outlet 13 is controlled by the ratio of secondary fluid passing through the two secondary circuits. Two further sources of secondary fluid at different temperatures may be connected to valves 24 and 25.
Patent GB-1179719-A (GB)
Title: Improvements in and relating to a Control Valve for the Introduction of Gas into a Vacuum Container
IPC: H02K33/04
Filed: 1967-09-28
Abstract: 1,179,719. Valves. BALZERS PATENTUND BETEILIGUNGS A.G. 28 Sept., 1967 [24 Oct., 1966], No. 44188/67. Heading F2V. [Also in Division G3] A valve for controlling the introduction of gas into a vacuum container through an aperture as described in Specification 1,063,549, has the closure member constructed as a vibrating diaphragm 4 with an aperture 12 through which gas flows when the diaphragm is lifted from the rubber elastic seal 5.
Patent GB-1196924-A (GB)
Title: Improvements in and relating to Synchronous or Asynchronous Electrical Machines
Inventor: RICHARDSON PHILIP
IPC: H02K3/47
Filed: 1967-09-28
Abstract: 1,196,924. Dynamo-etectric machines. C. A. PARSONS & CO. Ltd. 27 Sept., 1968 [28 Sept., 1967], No. 44245/67. Heading H2A. A synchronous or asynchronous electrical machine comprises a rotor, a stator core and a stator winding, the stator winding being spaced apart from the core and mounted in non-rigid relationship thereto. As shown, a stator core 2 of a turbogenerator is mounted in a casing 1 by springs 9 and a stator winding 4, embedded in insulating material, e.g. an epoxy resin 5 is secured to the casing 1 by rigid supports 6. Additional supports 6 may be located in radial slots in the stator core. Alternatively the winding may be mounted resiliently and the core rigidly, on the casing, or the winding and core may be rigidly secured to different supports which are themselves connected together through a resilient body. The insulation 5 may include magnetic material between adjacent conductors of the winding and may be reinforced by electrically conductive material.
Patent GB-1519228-A (GB)
Title: Stabilization of developed photographic images
IPC: C07D249/12
Filed: 1975-10-30
Abstract: 1519228 Developed image stabilization AGFA-GEVAERT AG 30 Oct 1975 [9 Nov 1974] 44901/75 Heading G2C [Also in Division C2]  In a process for the production of photographic images by exposure of a photographic material which contains at least one silver halide emulsion layer, development of the exposed silver halide and stabilization of the unexposed and undeveloped silver halide, development is carried out in the presence of α, α'-bis- [2, 5-dimercapto -1, 2, 4- triazolyl-4-imino]-p-xylene of the Formula or a salt thereof, e.g. its dimethylformamide salt. This compound has a stabilizing effect on the developed silver image. It may be added to the stabilizer bath e.g. to one containing ammonium or alkali metal thiocyanates, and the usual additives such as hardeners e.g. acetic acid or its salts i.e. or Cr III salts, sulphites e.g. potassium metabisulphite or aldehyde or ketone bisulphites, organic compounds e.g. 1-phenyl-5-mercaptotetrazole or 4- amino- 3, 5-dimercapto-1, 2, 4-triazole.
Patent GB-1004176-A (GB)
Title: Packaging containers
Inventor: GOUDRIAAN GERRIT JACOBUS
IPC: B65D77/20
Filed: 1962-11-29
Abstract: 1,004,176. Boxes; packages. UNILEVER Ltd. Nov. 27, 1963 [Nov. 29, 1962], No. 45115/62. Headings B8C and B8P. A number of adjacent sleeves 14, preferably of a plastics material, have their open ends closed by a common sheet at each end. The sheet may be a metal foil and may carry a label or decorative matter. This construction ensures that each sleeve is easily detachable. The sleeves may be square, triangular, hexagonal, or may be sectors of a circle and may leave " free " an inner part 15. Preferably, a small gap is left between adjacent sleeves which may have a piece of card therein, or a tear strip, or a fold in the cover sheet. To provide a firmer package, the side walls 4, 5 of the sleeves may be as shown at 12 in Fig. 6 or may have the portions 12 at right angles to the walls 4, 5.
Patent GB-1495689-A (GB)
Title: Circuit arrangements for eliminating the effects of switch chatter
IPC: H03K3/013
Filed: 1975-11-04
Abstract: 1495689 Semi-conductor pulse circuits SUWA SEIKOSHA KK 4 Nov 1975 [5 Nov 1974 9 Nov 1974] 45773/75 Heading H3T To eliminate chatter from a circuit switched by switch (e.g. relay contacts) S36, two memory units 33-34 and 35 are cascaded to output OUT40: non- synchronous memory 33-34 output W(35) can be set at any time between periodic reset pulses RS38 by a signal from switch S36, remaining set until reset by the next RS38 pulse; synchronous memory 35 is locked except during clock pulses WE39 of the same periodic time during which it may be set or unset according to the state of W(35). The switch closure sets memory 33-34 output W(35) positive at time T46, corresponding to the first negativegoing chatter pulse after the reset clearance at T43, remaining set until unset by the next reset pulse, before which at T44 the clock pulse WE39 sets memory 35 output OUT40 to copy W(35). The sensitive period of memory W35 ends just before the reset pulse to memory 33-34 starts, locking output OUT40. After the end of reset of memory 33-34 at the next time T43 the continued closure of switch S36 sets output W35 again and the cycle repeats, maintaining OUT40 continuously positive until after the switch opens, when at the next reset R38 pulse, memory 33-34 becomes unset, and at the next clock pulse WE39 thereafter, memory 35 is unset. Memory 33-34 may comprise a reset/set type flip-flop (RSFF) consisting of NAND gates 33, 34; memory 35 is a delay type flip-flop (0-FF). All components except switch S36 may be integrated. The end of the reset period at T43 should precede the next sensitive period of memory 35 by time t45 which should somewhat exceed t41 the periodic time of the chatter pulses-typically 4 ms. An alternative circuit (Figs. 7, 8, not shown) provides an additional pulse on a separate output to indicate the time of change of switch S36 by combining signal W35 and the inverse of output Q via a NOR gate. A clock operated switch or equivalent device in series with S36 limits the sensitive period T43-T44: in a similar circuit the switch may be connected to a positive supply to provide input on closure, in which case the AND gate 33 may be replaced by an inverter (Figs. 9, 10, not shown). The series switching circuit may be used (Figs. 13, 14, not shown) to prevent risk of input from the switch occurring simultaneously with the start of the reset period of memory 33-34, liable to cause uncertain output. The series switching circuit and the input stages of NAND gates 33 and 34 may be constructed as part of an LSI CMOS circuit (Fig. 15, not shown).
Patent GB-1157704-A (GB)
Title: Process for the production of Elastic Core-Spun Yarns
Inventor: LUMPP KURT
IPC: D01F6/72
Filed: 1966-10-13
Abstract: 1,157,704. Core spun yarn. FARBENFABRIKEN BAYER A.G. 13 Oct., 1966 [15 Oct., 1965], No. 45842/66. Heading D1W. In the production of a core spun yarn having an elastomeric polyurethane filament as the core, the filament is stretched 3 to 8 times its length in a heating zone at a temperature between 100 and 300‹C immediately before the core-spinning. Natural or synthetic fibres for example of polyacrylonitrile - may be spun around the core filament.
Patent GB-1431083-A (GB)
Title: Extrusion blow moulding processes
IPC: B29C48/09
Filed: 1973-10-02
Abstract: 1431083 Blow-moulding; electrical extrusion control BONE CRAVENS Ltd 25 Sept 1974 [2 Oct 1973] 45987/73 Heading B5A [Also in Division G3] A tubular thermoplastic parison is produced by an extruder of which the relative positions of the die body and mandrel are controlled by an electrical stepping motor in combination with an electrical control circuit to vary the position of the motor during production of a parison according to a predetermined programme. As shown in Fig. 1, a stepping motor 1 is connected via a worm reducing gear 2 and shaft 3 to an eccentric 4 upon which is mounted the mandrel actuating rod 5. A D.C. potentiometer 7 is also mounted on shaft 3 and provides a voltage indicating mandrel position. Each cycle is initiated by a knife cutting off the previous parison. The required mandrel position for each stage is set on a series of potentiometers 13, Fig. 3, and the voltage difference of the potentiometer settings of the first and reset stages is measured by a series of reed relays 14 and a differential amplifier 15. The amplifier output is rectified at 16 and this signal is arranged to produce a frequency output which is fed to motor drive control 17. A polarity sensor 18 determines the direction of motor 1. A clock 19 automatically divides the total cycle time into a number of stages and its output is fed to a shift register 20 operating the reed relays 14 in turn. A closed loop feedback from the potentiometer 7 returns the mandrel to the reset position at the end of each full cycle. A weight potentiometer 21 enables the reset position to be changed, increasing or decreasing the total parison weight.
Patent GB-1362578-A (GB)
Title: Information storage systems
IPC: G11B7/0065
Filed: 1971-10-05
Abstract: 1362578 Holographic recording system SIEMENS A G 5 Oct 1971 [13 Nov 1970] 46201/71 Heading G2J In a holographic recording system, electrical signals to be recorded are used to modulate a first beam 15 of coherent light in a modulator 7, the modulated beam then illuminating a moving, light-sensitive storage medium 1 together with a second coherent beam 14, to produce a hologram, both light beams 14, 15 being synchronously pulsed. As shown, the pulsed output from a  laser 3 is split by a semi-transparent mirror 4, the pulse frequency being twice the upper most frequency of the signal to be recorded. Beam 15 may be modulated in amplitude or polarization. The storage medium 1 may be tape, or a cylinder or disc having a spiral hologram track. In the later case, the track may be recorded at or adjacent the base of a conventional soundtrack groove to provide a colour picture signal. The stylus then guides a hologram scanning head. The hologram may be in the form of surface relief, possibly on a mirror relief surface. Playback is effected, Fig. 3 (not shown), by a further coherent beam (16) transmitted by, or reflected from the hologram on to a photo-electric detector (12). The beam (16) may be produced by a continuous-operation laser (11); or by a spectral lamp or luminescence diode used with a narrow-band interference filter; and may be fed through one or more optical fibres to illuminate the hologram. Beam (16) preferably has a wavelength longer than that of the recording beams 14, 15. The resulting electric signal may be passed through a frequency correction circuit and through a filter to remove the pulse frequency. All light beams are directed normal to the recording medium.
Patent GB-1443183-A (GB)
Title: Heating apparatus for scan lamp
IPC: G03G15/043
Filed: 1973-10-04
Abstract: 1443183 Lamps XEROX CORP 4 Oct 1973 [13 Oct 1972] 46323/73 Heading F4R [Also in Divisions G2 and H1] Apparatus for illuminating longitudinal sections of an original document 22 on the platen 24 of a multicolour electrophotographic printing machine during thes canning thereof comprises at least one tri-phosphor tubular fluorescent lamp 26 mounted on a sliding carriage 56, the lamp being surrounded through a 270 degree arc by a sleeve heater 68 and cooled by air from a blower 70 so that the temperature of the lamp, as measured by a thermally responsive member (76) positioned on the wall of the lamp, can be maintained within a predetermined range by regulating the heater. The exterior surface of the lamp is opaque except for a clear region (74) extending over the whole length of the tube and about a 45 degree arc.
Patent GB-1470112-A (GB)
Title: Transducer arrangements
IPC: H03K17/96
Filed: 1974-03-22
Abstract: 1470112 Piezoelectric generators SIEMENS AG 22 March 1974 [22 March 1973 5 Feb 1974] 46488/76 Divided out of 1470111 Heading H2A The Specification repeats the subject matter of Specification 1,470,111, but the claims are concerned with piezoelectric ceramic transducers having bodies of piezoelectricallyinactive ceramic integral therewith.
Patent GB-1120256-A (GB)
Title: Process for the production of oxirane compounds and phthalic anhydride or alpha-naphthol
Inventor: RUSSELL JOSEPH LEE
IPC: C07C51/31
Filed: 1965-11-03
Abstract: Oxirane compounds and either phthalic anhydride or a -naphthol are prepared by catalytic epoxidation of an olefinically unsaturated compound by reaction with tetralin a -hydroperoxide in the liquid phase to form an oxirane and a -tetralol and subsequent oxidation of a -tetralol to phthalic anhydride or dehydrogenation to a -naphthol. Tetralin a -hydroperoxide may be obtained by liquid phase oxidation of tetralin with molecular oxygen.  Specified unsaturated compounds include hydrocarbons, alcohols, ethers, esters, ketones and chlorides. Suitable epoxidation catalysts include compounds of Ti, V, Cr, Se, Zr, Nb, Mo, Te, Ta, W, Re and U.  It is preferred to use the catalyst in a form which is soluble in the reaction mixture, e.g. naphthenates and carbonyls of Mo, V and W.  A basic substance may be included in the epoxidation reaction mixture.  The oxirane may be separated, e.g. by distillation, from the product mixture before the subsequent reaction of the a -tetralol.  a -Tetralol is preferably oxidized using molecular oxygen in the vapour phase, optionally in the presence of a V2O5 or Co, Mo or Cu oxidation catalyst. Dehydrogenation of a -tetralol is preferably effected in the presence of hydrogen and a dehydrogenation catalyst, preferably Pt on carbon. Examples relate to the preparation of propylene oxide and phthalic anhydride or a -naphthol.
Patent GB-1160874-A (GB)
Title: Dual Arc Welding
Inventor: ARNOLDY ROMAN FRANCIS
IPC: B23K9/04
Filed: 1966-10-19
Abstract: 1,160,874. Welding by fusion. R. F. ARNOLDY. 19 Oct., 1966 [1 Feb., 1966], No. 46709/66 Heading B3R. In a method of welding, e.g. cladding, granular alloy material is fed between and preferably just ahead of a pair of consumable electrodes located on each side of the weld path. An automatic or semi-automatic welding machine comprises a frame 12 housing a welding torch and pivotally connected to a boom 28 of a welding machine or a handle. The frame 12 is also pivotally connected to a bracket 22 carrying a supporting roller 20. A device R on the frame 12 reciprocates a link 48 to produce transverse oscillation of the welding torch. Two consumable electrodes 40 are fed to the welding torch to produce two arcs between which the alloying material is fed from a tube 34. A device 15 co-ordinates feed of the electrodes and the alloying material. Flux is fed through a tube 32 to a nozzle surrounding the electrodes. Alternatively a shielding gas may be used.
Patent GB-1190039-A (GB)
Title: Thrust Reversing Mechanism for Aircraft Gas Turbine Engines
Inventor: DENNISON THOMAS ARTHUR
IPC: F02K1/74
Filed: 1967-10-13
Abstract: 1,190,039. Thrust reversing mechanism for aircraft. BRITISH AIRCRAFT CORP. Ltd. 13 Oct., 1967 [13 Oct., 1966], No. 46712/67. Heading B7G. An aircraft gas turbine jet propulsion engine enclosed within and spaced from a fairing 11 so that cooling air 21 may flow between the fairing and the engine casing has a thrust reversing mechanism 14 which when inoperative does not obstruct the exhaust gas flow but which may be moved to direct the exhaust gases out forward through the fairing 11, and a further system 31 movable between one position in which it does not obstruct the flow of cooling air 21 and another position in which it prevents the exhaust gases from flowing forward inside the fairing. At the rear of the exhaust pipe 13 of the engine 10 are a pair of pivoted "eyelids" 14, Fig. 1, arranged to deflect the exhaust gas radially outwards through a set of vanes 18 arranged at the top and bottom only of the engine to deflect the gas forward. To prevent the hot exhaust gases being drawn back into the space between the engine casing and the fairing a conical ring 30 with eighteen equally spaced apertures 36, Fig. 5, each carrying a pivoted flap 31 which is normally held by a spring 38 in a position in which it does not obstruct the cooling airstream. When thrust reversal takes place the flaps 31 are automatically deflected by the exhaust gases into positions in which they block the rear end of the cooling air annular duct. Upstream of the vanes 18, which are covered by a fairing when not in use, are deflectors 32 and smooth shoulders 33 to prevent the deflectors obstructing the rearward flow of cooling air between the engine and the fairing.
Patent GB-1410040-A (GB)
Title: Method of making mosquito coils
IPC: A01M1/20
Filed: 1972-10-10
Abstract: 1410040 Making mosquito coils FUMAKILLA Ltd 10 Oct 1972 [8 Nov 1971 (2)] 46723/72 Heading B5A [Also in Division A5] A method of making mosquito coils comprises feeding powdered ingredients of a coil base into a mould, hot pressing the powdered ingredients in the absence of added water or binder at a temperature of 100-180‹ C. under a pressure of 500-1500 kg. 0 cm.<SP>2</SP> to form a coil base and thereafter applying an insecticide to the surface of the moulded coil base. The period of pressing may comprise 0À5-60 sees. The powdered ingredients may comprise a first combustible material with a relatively high material content of resin, e.g. chrysanthemum flowers, sunflower blooms, Chinese mild vetch flowers, hop flowers, bamboo leaves, fern leaves or dried draffs of such flowers and/or leaves and a second combustible material with a relatively low natural content of resin, e.g. wood flours, paper or dried pulp. The insecticide may be applied by spraying or dipping. The insecticide may consist of chrysanthemum acid ester derivatives, organochloro insecticidal compounds, pyrethrum extract, pyrethrine, arethrine and alpha-benzene hexachloride in a carrier such as benzene, toluene, xylene, hexane, heptane, octane and cyclohexane. A polymeric coating may be applied with or subsequently to the insecticide to form a protective film on the coil. The coating may comprise a terpenic polymer or a natural resin, several examples of each being given.
Patent GB-1058589-A (GB)
Title: Improvements in or relating to textile raising machines
IPC: D06C11/00
Filed: 1963-11-27
Abstract: 1,058,589. Bearings. K. A. MœLLERS. Nov. 27, 1963 [Jan. 17, 1963], No. 46901/63. Heading F2A. [Also in Division D1] A textile raising machine has a drum formed of rollers, each having an end supported by at least two bearings, at least one of which is resiliently mounted. In an embodiment, each roller (10), Fig. 2 (not shown), is mounted in a housing (18) by ball bearings (13), (14), (15) and (16), rubber &c. rings (17) being interposed between the bearings (13), (15) and the housing. The rubber &c. rings (17) may be secured to steel bushes (19) which slide axially in the housing. In a modification, all the bearings 13. 14. 15 and 16 are resiliently mounted.